Divisional Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Illinois, Climate Division 7. East Southeast

Average Temperature Rankings, September 1898

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1898 1-Month	69.8°F (21.0°C)	67.4°F (19.7°C)	2.4°F (1.3°C)	96th Coolest	Coolest since: 1896	1918
	69.8°F (21.0°C)	67.4°F (19.7°C)	2.4°F (1.3°C)	33rd Warmest	Warmest since: 1897	1925
	Ties: 1900
Aug–Sep 1898 2-Month	71.9°F (22.2°C)	70.8°F (21.6°C)	1.1°F (0.6°C)	90th Coolest	Coolest since: 1897	1967
	71.9°F (22.2°C)	70.8°F (21.6°C)	1.1°F (0.6°C)	39th Warmest	Warmest since: 1895	1936
	Ties: 1987
Jul–Sep 1898 3-Month	73.2°F (22.9°C)	72.7°F (22.6°C)	0.5°F (0.3°C)	78th Coolest	Coolest since: 1897	1967
	73.2°F (22.9°C)	72.7°F (22.6°C)	0.5°F (0.3°C)	51st Warmest	Warmest since: 1897	1936
	Ties: 1897
Jun–Sep 1898 4-Month	73.3°F (22.9°C)	72.6°F (22.6°C)	0.7°F (0.3°C)	85th Coolest	Coolest since: 1897	1967
	73.3°F (22.9°C)	72.6°F (22.6°C)	0.7°F (0.3°C)	44th Warmest	Warmest to Date	1936
	Ties: 1932
May–Sep 1898 5-Month	71.2°F (21.8°C)	70.7°F (21.5°C)	0.5°F (0.3°C)	78th Coolest	Coolest since: 1897	1924
	71.2°F (21.8°C)	70.7°F (21.5°C)	0.5°F (0.3°C)	51st Warmest	Warmest to Date	1936
	Ties: 1899, 1908
Apr–Sep 1898 6-Month	67.6°F (19.8°C)	67.7°F (19.8°C)	-0.1°F (0.0°C)	56th Coolest	Coolest since: 1897	1907
	67.6°F (19.8°C)	67.7°F (19.8°C)	-0.1°F (0.0°C)	73rd Warmest	Warmest since: 1896	2010
	Ties: 1912, 1916, 1973, 1981
Mar–Sep 1898 7-Month	64.3°F (17.9°C)	64.0°F (17.8°C)	0.3°F (0.1°C)	71st Coolest	Coolest since: 1897	1924
	64.3°F (17.9°C)	64.0°F (17.8°C)	0.3°F (0.1°C)	58th Warmest	Warmest since: 1896	2012
	Ties: 1895, 1963, 1980, 1983
Feb–Sep 1898 8-Month	60.3°F (15.7°C)	59.9°F (15.5°C)	0.4°F (0.2°C)	72nd Coolest	Coolest since: 1897	1904, 1924
	60.3°F (15.7°C)	59.9°F (15.5°C)	0.4°F (0.2°C)	57th Warmest	Warmest since: 1896	2012
	Ties: 1942, 1948, 2021
Jan–Sep 1898 9-Month	57.2°F (14.0°C)	56.4°F (13.6°C)	0.8°F (0.4°C)	86th Coolest	Coolest since: 1897	1979
	57.2°F (14.0°C)	56.4°F (13.6°C)	0.8°F (0.4°C)	43rd Warmest	Warmest to Date	2012
	Ties: 1949, 2019
Dec 1897–Sep 1898 10-Month	54.4°F (12.4°C)	53.9°F (12.2°C)	0.5°F (0.2°C)	77th Coolest	Coolest since: 1897	1904
	54.4°F (12.4°C)	53.9°F (12.2°C)	0.5°F (0.2°C)	51st Warmest	Warmest since: 1896	2012
	Ties: 1946, 1976, 1990
Nov 1897–Sep 1898 11-Month	53.2°F (11.8°C)	52.8°F (11.6°C)	0.4°F (0.2°C)	70th Coolest	Coolest since: 1897	1904
	53.2°F (11.8°C)	52.8°F (11.6°C)	0.4°F (0.2°C)	58th Warmest	Warmest since: 1896	2012
	Ties: 2013
Oct 1897–Sep 1898 12-Month	53.8°F (12.1°C)	53.0°F (11.7°C)	0.8°F (0.4°C)	84th Coolest	Coolest since: 1897	1904
	53.8°F (12.1°C)	53.0°F (11.7°C)	0.8°F (0.4°C)	44th Warmest	Warmest to Date	2012
	Ties: 1911, 1935, 1952, 1964
Apr 1897–Sep 1898 18-Month	58.1°F (14.5°C)	58.0°F (14.4°C)	0.1°F (0.1°C)	68th Coolest	Coolest since: 1897	1918
	58.1°F (14.5°C)	58.0°F (14.4°C)	0.1°F (0.1°C)	60th Warmest	Warmest to Date	2012
	Ties: 1909, 1925, 1945, 1965
Oct 1896–Sep 1898 24-Month	53.0°F (11.7°C)	53.0°F (11.7°C)	0.0°F (0.0°C)	52nd Coolest	Coolest since: 1897	1979
	53.0°F (11.7°C)	53.0°F (11.7°C)	0.0°F (0.0°C)	75th Warmest	Warmest to Date	2017
	Ties: 1930, 1946
Oct 1895–Sep 1898 36-Month	53.0°F (11.7°C)	53.1°F (11.7°C)	-0.1°F (0.0°C)	53rd Coolest	Coolest since: 1898	1979
	53.0°F (11.7°C)	53.1°F (11.7°C)	-0.1°F (0.0°C)	73rd Warmest	Warmest to Date	2018
	Ties: 1911, 1925, 1959, 1986, 1998

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 2, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings